•  Analysis of economic problems.
• Formulation of economic plans.
• National income accounting.

To study the relationship between economic variables. (Explanation required)

Detailed Answer : 

Role of statistics in economics: 

(a) Analysis of economic problems : An economist uses statistics to understand and analyse economic problems. 

(b) Applying cause and effect relationship : An economist uses statistics to establish cause-effect relationship between different sets of data. 

(c) Formulating economic theories : An economists formulates economic theories on the basis of results derived from cause-effect relationships. 

(d) Forecasting : An economist forecasts the behaviour of economy on the basis of results derived from past statistical data. 

(e) Formulating economic policies : The government formulates its economic policies on the basis of comparison of past statistical data with the present scenario. 

(f) National Income Accounting : The national income of the country is calculated on the basis of statistical data collected from all the producing units, households and expenditure sectors of the economy.